20766668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 41489280

約数和(自身を除く): 20722612

約数列:

[1, 2, 4, 13, 26, 29, 47, 52, 58, 94, 116, 188, 293, 377, 586, 611, 754, 1172, 1222, 1363, 1508, 2444, 2726, 3809, 5452, 7618, 8497, 13771, 15236, 16994, 17719, 27542, 33988, 35438, 55084, 70876, 110461, 179023, 220922, 358046, 399359, 441844, 716092, 798718, 1597436, 5191667, 10383334, 20766668]

約数ペア:

[(1, 20766668), (2, 10383334), (4, 5191667), (13, 1597436), (26, 798718), (29, 716092), (47, 441844), (52, 399359), (58, 358046), (94, 220922), (116, 179023), (188, 110461), (293, 70876), (377, 55084), (586, 35438), (611, 33988), (754, 27542), (1172, 17719), (1222, 16994), (1363, 15236), (1508, 13771), (2444, 8497), (2726, 7618), (3809, 5452)]